Electric-circuit-controlling apparatus.



T. L. LEE, Jl. ELECTRIC CIRCUIT CUNTBOLLING APPARATUS. APPLIDATION Hmm .wrm as, 1910. ummm: no. 1s, 1911.

1,024,587. Patented Apr. 3o, 1912.

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UNITED STATES PATENT OFFICE.`

TROIAS L. LER, JR, OF-WFSTFIELD, BBW JERSEY, ASSIGOB T0 THB HALL SIGI'HAL COIIPANY, A CORPORATION F m2. i

mC-GIBCUIT-CORTBULLING APPARATUS.

. Speeication of Letters Patent. Application fled Jue 29, 1910, Serial lo. 563,425.4 Renewed December To au whom it may conca-n: v

Be it known that I, TnoxAs L.. LxB, Jr., a citizen of the United Stat residing at Westeld, in the county of Union :md State of New Je'rsey, have mvented eertain new and usefnllmprovements .in Electric-'Circuit-Gontrolling Apparatus, of-which the following is a specllication, reference being had therein to the accompanying drawings, forming part thereof.

My invention relates broadly to contact devie for opening and closng electric circuits and is an improvement upon :m invention described in my application for United States Letters Patentfor electric circuit con apparatus, filed February 12, 1910, Serial To. 543,540.

The embodiment of the invention illustrated in the above mentioned appliantion inelnd a wire ganze contact member supported at its ends and stretched between two flexible supports having an elastic tendelicy to Separate. In this wnstmct-ion thc wire gauze and its llexible mounting are in` separably connected by rivets, sokthat when` the comparatively perishable nre ganze wears out, both the ganze and its'monn'ting must. be' renewed together. This invention pertains to contact members included in my previous invention and hasta: to render such contacts new and advantag .of my invention will appar from the following de- Broadly my invention :omprehends :n cony tact arranged to be supported at two and #mounting therefor which has Imre members adapted to; be

In; In.' t 0f mylnvelltim the contact-memis member under tenon thesupportsharing an elastic "to sparate, an'd detachahly conmddlfbi'i Supports; .Still 1110"! SP@ oilly, member is wire oontact :33pm w be man rfIeshnll medm-ibe my ind-Honig renee to accompanying wings shnll thereafter point out my nventli in 1 is anelevation of a complete lay 1n whidn my invention -is embodied.

Figs?. andarerespective pian viw, side eleven@ and minimum showing of the Wil'glll ol and in piece.

In the illustrated ofrmy invention, ble beat. uponasui 1vot12inpositionto tracted by the l i lr4li s gsuitably`lnonnted1`n theV armature-and or bow l5 natendpro, 1912. Q

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' which carriesA 16 pany mil --fbowmlmthhnamwshgim balder :i2-1p around the the gr-:Ehte Ahindi-is slib tlyeonvegwherebythe to this convex snra and eeets contact therewith overa relatively .1 sn'fxnnd at manypoints'. are' closed A1n my previous' en'ed to. y Thisinventionpatanstothemeansfor attaching the wire gauze 16 to thespli Support or moon 15, which means now be wire geom is ordi narilv mnchfhorter the mount-- ing 1,5., and imm the I`provide means for removably the gauze toitssupportsothtwhmthegaunevars loe , together till out, it may be readily removed and a new one put in its place on the same mounting To effect this, the mounting 15 has its .supporting ends recessed or cut out for a width equal to that of the gauze, thereby leaving an ear portion or lug 18 on eachl side of the recess, the upper end of which is benJ back at an angle as shown. The gauze has its ends turned up and back like a book, as shown in Figs. 5, 6 and 10, and for each end there is provided an endv reinforcing or sclvage member 19 which is substantially equal in length to the width of the mounting 15 and which is coiled up longitudi nally and adapted to fit on the end of th( gauze, as shown in Fig. 10, and the ends` of which project beyond the gauze at each side thereof so that they will catch under the lugs 18 of the mount-ing. i

To insert a gauze Contact in the mounting, the ends of the mounting are sprung the end pieces 19 will pas: outside the ears 18 as the gauze is liiid in the recesses of the mounting, and after the gauze, as shown in Fig. 10, and the ends of are allowed to spring back, and the ear,K 18 spring over the end pieces, as shown n Fig. t), and hold the gauze Contact in thf mounting, till the mounting is again sprung together and the gauze released, when, if desired, the gauze may be readily lifted out and a new one inserted, thus affording extremely simple means for readilyattaching and detaching the contact member.

It is obvious that various modifications may be made in the construction shown and above particularly described within the principle and scope of my invention.

I claim:

1. In an electric circuit controlling apparatus, a contact device comprising a contact member having a rough, broken or interrupted surface, aV second contact device having a relatively soft or quickly wearing coaeting surface, and a supporting member for the first contact member consisting of tivo supporting arms having an elastic tendency to separate, the first contact member and the two supporting arms having hooking portions adapted to be hooked together and held in hooked engagement by the separating tendency of the supporting arms.

2. l'n an electric circuit controlling appaiatus,acontact device comprising a tlexible Contact member having a rough, broken or interrupted surface, a second Contact device having a relatively soft or quickly wearing coacting surface, and a supporting member for the first contact member consisting of two supporting arms having an elastic tendency to separate, the first contact member and the two supporting arms having hooking portions adapted (o he hooked together and held in hooked condition by the separating tendency of the supporting arms.

3. In an electric circuit controlling apparatus, a contact device comprising a contact member having a rough, broken or interrupted surface, a second contact device having a relatively soft or quickly wearing coacting surface, and a mounting for the first contact member consisting of two sup porting members having an elastic tendency to separate and having recessed supporting ends, the rst contact member having hooking portions arran ed to detachably hook in such recessed ens.

In an electric circuit controlling apparatus,acontact device comprisin a iiexible contact member having a roug broken or interrupted surface, a second contact device having a relatively soft or quickly wearing coacting surface, and a mounting for the first contact member consisting of two supporting members having an lelastic tendency to se arate and having recessed supporting len s, the first contact member having hooking portions arranged to detachably hook in such recessed ends, the first contact memberbeing held under tension and in hooked engagement with the supporting members by the elastic tendency' of the supporting members to separate.

5. In an electric circuit controlling apparatus, a contact device comprising a wire gauze Contact member adapted to be supported at'two points like a bridge, a reinforcing member for each supportin point of the contact member, anda mounting for the contact member including two supporting arms having an elastic tendenc to separate, the supporting arms each aving a hooking portion adapted to be detachabli hooked to a reinforcing member of the contact member and to be held in hooked conneet-ion therewith by the elastic separating tendency of the supporting arms.v

6. In an electric circuit controlling appai'atus, a Contact 'device comprising a contact member having laterally projecting end portions, and a mounting therefor consistingr of two supporting members having retresses in their supporting ends and arranged to supportthe contact member in such recesses with the laterally projecting end portions extending behind the portion of the supporting members at the'side of the recesses.

7. ln an electriercircuit controlling apparatus, a Contact device comprising a contact member having laterally projecting end portions, and a mounting therefor consisting of two supporting members having an elastic tendency to separate and having recesses in their supporting ends and arranged to support the contact member in Fili-h recesses with the laterally projecting end portions extending behind the portion of the supporting members at the side of the recesses, the of'mtnet member being held under tension by the elastic tendency of the supporting members to separate.

In nn electric eirenit controlling apperntusn contat-t device comprising a eentnet member, a` removable end piece for eneh end of the Contact member adapted when applied to projeet laterally thereof, und a mounting for the'eontftet member, including two supporting members having recesses on their supporting ends and an ranged to support the contact member in sueh recesses with the laterally projecting end pieces extending behind the portion of the supporting members :1t the side of tbe recesses.

t). In en eieetrie eircuit controlling epparutus, a` eontaet device having a tlexible Contact member, i1 renmvable end piene for each end of the Contact member adapted when applied to project laterally thereof, and :i mounting for the contact member, including two supporting members having un elastic' tendency to seperate and having;r recesses on their supporting ends and er ranged to support the eontaet member in such recesses with the laterally projecting end pieees extending behind the portion of the supporting members et the side of the reinforeing or selvage piece for each end` of the Contact member and of a length exeeeding the width of the eontaet member,`

whereby the end pieces when applied will prejeet laterally of the Contact member, and e mounting for the Contact member inelnding two supporting members having an elastic tendency to separateend having roeesses on their supporting ends and the portions at the 'sides of the recesses bent beek at an angle and arranged to Support the Contact member in such recesses with the end pieces extending to the side of the reeesses underneath the bent beek portions, the Contact member being held under tension by the elastie tendeney of the support ing arms to seperate.

In testimony whereof lf have affixed my signature in preseneo of two witnesses.

THMAS L. LEE, JR. lhitnesses:

VIoTon D. Bons'r, .VM. Asumir KELLY. 

